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Finding the Fourth Proportional to 371.85, 556.74 and 188.35

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Solution

The fourth proportional to 371.85, 556.74 and 188.35 is: 282.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.85 : 556.74 = 188.35 : x
  2. Step 2: Convert to fraction form
    371.85/556.74 = 188.35/x
  3. Step 3: Cross multiply
    371.85x = 556.74 × 188.35
  4. Step 4: Simplify right side
    371.85x = 104,861.98
  5. Step 5: Solve for x
    x = 104,861.98/371.85
  6. Step 6: Final answer
    x = 282.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.